killer sudokus
standard sudokus are too pedestrian for us. we do killer sudokus. you can find books of them on krazydad.com. thanks krazydad! they're fun cause you don't start with any starter numbers. you get odd shaped regions of boxes and the sum of the numbers in that box. i don't care much for standard sudokus because you get to a point where you have to guess. and see where if it leads to a contradiction. which is cool. but much of the time it leads to the solution. which is satisfaction fail. killer sudokus aren't immune to this. as evidenced by the puzzle that inspired this post. but it seems to happen a whole lot less. ie more of the puzzles can be solved by deduction and reasoning. instead of guessing. any moron can do that.